Added Future#finally, made pre-ES5 pseudo-symbols work across realm for branding (though the data is less protected), added a timeout to Future.sleepUntil, plus minor cleanup
Added Future#finally, made pre-ES5 pseudo-symbols work across realm for branding (though the data is less protected), added a timeout to Future.sleepUntil, plus minor cleanup

rbuckton/promisejs,rbuckton/promisejs